diff --git a/Gemfile.lock b/Gemfile.lock
index 6dac43a8e..2a75e16e3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -593,7 +593,7 @@ GEM
     telephone_number (1.4.13)
     term-ansicolor (1.7.1)
       tins (~> 1.0)
-    test-unit (3.5.2)
+    test-unit (3.5.3)
       power_assert
     thor (1.1.0)
     thread_safe (0.3.6)